The unit measure for atmospheric pressure is kPa (Kilo-Pascals). At sea level the standard atmospheric pressure is 101.3 kPa. For every 1000 feet increase in altitude, atmospheric
pressure decreases by 1.8 kPa. What is the atmospheric pressure at 50,000 feet?

The table below shows the approximate masses of a dust particle and a grain of pollen. dust particle 0.000000778 g grain of pollen 0.00000000155 g the mass of a dust particle can be estimated and written in the form a × 10^b, where a = 8 and b = the mass of a grain of pollen can be estimated and written in the form a × 10^b, where a = 2 and b = based on the estimates, the mass of a dust particle is approximately blank times larger than the mass of a grain of pollen.